.lei{
    background-color:#ffffff;
    height: 50px;
    width: 100%;
    /* border: 1px solid yellow; */
    display: flex;
    align-items: center;
    overflow-x:auto;
    scrollbar-width: none;
    font-size: 12px;
    color: #666666;
    padding-left: 15px;
}

.lei a{
    border: 1px solid #666666;
    padding: 7px 12px;
    margin-right: 10px;
    border-radius: 5px;
    text-wrap: nowrap;

}
.lei :first-child{
    border: 2px solid black;
    color:black;
    font-weight: bold;
}